Free · The 10-Minute Test
A ten-minute test, free tools, any track you own. No theory, no trust required — least of all in me. Most of what’s sold as “binaural” fails it, and you’re about to see why.
Drop in any “binaural” file and this measures the left and right carriers in your browser — instantly, privately, free. Or take the full method as a PDF.
Run the test in your browser → Download the PDF🔒 Your file never leaves your device. Free to keep and share with whoever sold you your last track.
A bestseller-style track, summed to mono on screen. Nothing changes. That track can’t do what it sold you — and here’s the test for every track you own.
A “binaural” file you bought or downloaded.
One free step in free software (or a phone-speaker shortcut).
Real construction changes. A fake changes nothing.
Same in mono = no binaural beat
“The beat is generated inside your head, from the difference between two tones — one per ear. If summing to mono changes nothing, there was never a difference to lose. No difference, no beat. It’s not a weak product; it’s the wrong label.”
— from Headphones Required: The Honest Guide to Frequency Audio. This test is Chapter 2 of 14.